29... a6b6 Firouzja only needed a draw, so I don't think he tried too hard to find a winning line, which he certainly would be able to do if necessary. 30. b3a4  30... b6a6  31. c4a6 A desperate move, since a draw or defeat would seal the same fate in the match. It doesn't make much difference, since now White simply has to resign. 31... d2c2 